Funding for this research was provided by:
Northcott Devon Medical Foundation. (TB/MG/NO5002)
Text and Data Mining valid from 2019-12-01
Received: 23 May 2019
Accepted: 10 October 2019
First Online: 9 December 2019
Ethics approval and consent to participate
: The study was conducted according to the ethical guidelines of the Declaration of Helsinki and was approved by the ethics committee of the University of Exeter Sport and Health Science department. All participants provided a written informed assent, and parental consent.
: Not applicable.
: The authors declare that they have no competing interests.